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-rw-r--r--src/signal.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/signal.c b/src/signal.c
index 0c564651..745d7c38 100644
--- a/src/signal.c
+++ b/src/signal.c
@@ -4,6 +4,8 @@
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* All Rights Reserved
*
+ * SPDX-License-Identifier: GPL-2.0+
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or